30649149 has 12 divisors (see below), whose sum is σ = 44322876. Its totient is φ = 20408832.

The previous prime is 30649127. The next prime is 30649163. The reversal of 30649149 is 94194603.

30649149 is a `hidden beast` number, since 3 + 0 + 649 + 1 + 4 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26163225 + 4485924 = 5115^2 + 2118^2 .

It is not a de Polignac number, because 30649149 - 2⁵ = 30649117 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30649169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9757 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (3693573).

Almost surely, 2^30649149 is an apocalyptic number.

It is an amenable number.

30649149 is a deficient number, since it is larger than the sum of its proper divisors (13673727).

30649149 is a wasteful number, since it uses less digits than its factorization.

30649149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3996 (or 3993 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 30649149 is about 5536.1673565744. The cubic root of 30649149 is about 312.9484513978.

It can be divided in two parts, 306 and 49149, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 30649149 in words is "thirty million, six hundred forty-nine thousand, one hundred forty-nine".